baber/WOPTO huggingface dataset:
Patent GB-1512262-A (GB)
Title: Anchoring element for frames
IPC: E06B1/60
Filed: 1975-04-29
Abstract: 1512262 Door frames CATNIC SCHANZ Ltd 29 April 1975 [30 April 1974] 17750/75 Heading E1J An anchoring element comprises two resilient shanks 10, 11 connected together at one end and with means facilitating their movement towards each other. The element is a wire having a base portion 12 anchored in a wall and the ends of the shanks 10, 11 bent back and engaged in a frame member 5. The ends may be bent out of the plane of the body (Figs. 3 and 4). The shanks may be bent to overlap to form circular and oval shapes, or may be connected by slidable spacers (Figs. 11-13). The ends of the limbs may be bent to U-shape (Fig. 10) or W-shape (Fig. 21).
Patent GB-900246-A (GB)
Title: Improvements in survey plotting instruments
IPC: B43L7/00
Filed: 1959-05-26
Abstract: 900,246. Protractors; rulers. ZENTHON, E. R. May 26, 1960 [May 26, 1959], No. 17850/59. Class 97 (3). A protractor for plotting tacheometric surveys on paper or for use in marine chart work, comprises a rigid flat plate 1, Fig. 1, with a cutout 2 in the form of a complete circle, the edge of the cut-out being graduated such as in sixths of a degree. A ruler 7, Fig. 3, which is used in association with the protractor has its graduated edges bevelled and across one end a member 8 is secured by rivets 9. The member 8 has pinholes 11, each of which coincides accurately with the zero of one of the two scales. To plot the results of a tacheometric survey a square transparent plate 4, Fig. 5, is placed with the intersection of two lines 5, 6, marked thereon, over the mark 3 of the observing station and marks, as shown, are made on the paper at the ends of lines 5, 6. The plate 4 is removed, and the protractor placed so that the marks made are aligned with N, S, W, E markings on the protractor, the marks 3 then being at the centre of the protractor. A pin is placed through one of the holes 11 in ruler 7 into the board at mark 3 so that ruler 7 may rotate and co-operate with the protractor.
Patent GB-111363-A (GB)
Title: Improvements relating to the Welding of Plates.
IPC: B23K33/00
Filed: 1916-12-13
Abstract: 111,363. Quasi-Arc Co., and Cole, W. L. Dec. 13, 1916. Plates.-In uniting the plates a, b of ships by fusion, the normal joint line of the plates a, b is increased by notches and insertions e welded into place The blocks may be of higher tensile strength than the plates, and may be of lozenge, rhomboid, dumb-bell, or rectangular shape. The Quasi-Are electric process as described in Specifications 1274/12, 11079/12, and 13538/14, [all in Class 83 (iv), Metals, Working], may be used. Specification 105,485, [Class 83 (iv), Metals, Working], also is referred to.
Patent GB-119755-A (GB)
Title: Improvements in or relating to Percussion Fuses for Projectiles.
IPC: F42B30/04
Filed: 1917-12-04
Abstract: 119,755. Beaton & Son, G., and Steuart, J. N. Dec. 4, 1917. Projectile fuses.-Consists in a percussion fuse so constructed that the striker is moved in the direction of the detonator by the shock of discharge, (or by a blow of the hand, in the case of a hand grenade) and is then returned to its initial position by a spring, this to-and-fro movement effecting the release of a safety-device. In the construction shown, the safety-device is a ring d, which is arranged between the head c<1> of the striker and the fuse-casing e, and is slotted so as to 'be easily sheared into segments by a blade c<2> when the striker sets back on discharge of the projectile. The head c<1> is recessed, so as to hold the segments together until the striker is moved outwards again by a spring f, whereupon the segments fall away, leaving the striker free to be driven in against the detonator on impact.
Patent GB-873913-A (GB)
Title: Improvements in or relating to purification of dimethylterephthalate
IPC: C07C69/82
Filed: 1958-06-05
Abstract: Dimethyl terephthalate having an acid number less than 0.05 and a melting point of 140.62 \sB 0.02 DEG C. is prepared by purifying crude dimethyl terephthalate partly by distillation and partly by methanol treatment, where the distillation may precede or follow the methanol treatment and where the methanol treatment comprises slurrying the crude ester with 1 to 10 parts by weight of methanol per part of crude ester, agitating the slurry for such a time that the acid number of the solid ester is substantially reduced and recovering solid dimethyl terephthalate of reduced acid number from the slurry.  When the methanol treatment is carried out before distillation preferably 2 to 6 parts of methanol are used per part of ester at a temperature of 10 DEG  to 60 DEG C.  The solid ester is then separated from the slurry, freed from adhering methanol and distilled in a known manner.  The forerun and residue from the distillation may be recycled to the methanol treatment. The crude ester purified in this manner generally has an original acid number of 0.1 to 50.  When the acid number is below 25 the crude ester may first be distilled in a known manner to give a purified fraction of ester and a less-pure fraction which is then subjected to the slurrying treatment with methanol, preferably at 50 DEG -60 DEG C. The purified ester from the slurrying treatment may be blended with the purified fraction from the distillation.  In the Examples (1) an ester of acid number 20 is slurried with 3 lbs. of methanol per lb. of ester for 30 minutes at 25 DEG C., the solid ester separated and distilled, (2) an ester of acid number 8 is distilled to give 65% recovery of pure ester, the less-pure ester is slurried with 3 parts of methanol at 60 DEG C. for 15 minutes and an ester of acid number 0.02 recovered.
Patent GB-972702-A (GB)
Title: Improvements in or relating to transistor switching devices
Inventor: COWLIN PHILIP
IPC: H03K17/62
Filed: 1960-05-23
Abstract: 972,702. Measuring temperature. BAILEY METERS & CONTROLS Ltd. May 17, 1961 [May 23, 1960], No. 18053/60. Heading G1N. [Also in Divisions G4, H2, H3 and H4] A switching circuit (see Divisions H3 and H4) is used in and electronic commutator circuit for connecting each of a plurality of thermocouples in turn to a load and provision is made for stopping the commutating action and connecting any selected thermocouple to the load. In Fig. 1 the thermocouples 1 are connected in series with reference voltages 2 to a common output line labelled "switched output" in succession by rendering the corresponding pairs of silicon transistors 3, 4 conducting. This may be effected by bringing into operation successively one at a time the oscillators 9 and feeding their output either directly or through a rectifier circuit 5, 6 to the corresponding transistors 3 and 4. The oscillators are of a type which upon receipt of a triggering pulse will commence operation and remain so until switched off by a quenching pulse and will remain off until retriggered into the operating condition. Quenching pulses are supplied from a common oscillator 10 in parallel to each oscillator 9 so that the operative oscillator is switched off. The resulting surge in the collector current produces a pulse which is fed to the next oscillator to initiate operation and this continues until the next quenching pulse occurs when this switches off and the next is switched on so causing the oscillation state to switch round the ring of oscillators. An individual circuit may be brought into operation by operating a switch 12. This disconnects the quenching supply from the selected oscillator and connects instead a negative voltage which brings the oscillator into operation. A further contact on the switch interrupts the quenching supply to the other oscillators. In an alternative embodiment (Fig. 5, not shown) operation of a selecting button 12 causes the repetition frequency of the quenching pulses from source 10 to increase so that the circuit rapidly switches round to the selected oscillator. A rectified output of this oscillator is connected through a further contact of switch 12 to a transistor which short circuits the supply of quenching pulses so that the circuit remains switched to this condition. In a further embodiment (Fig. 6, not shown) each oscillator is replaced by a pair of cross coupled transistors forming a bi-stable circuit and outputs from the bi-stable circuits are connected to gating transistors which connect a common oscillating source to the appropriate one of the transistors 3, 4 of Fig. 1.
Patent GB-1245214-A (GB)
Title: Improved tab receptacle electrical connector
Inventor: TEAGNO WLADIMIRO
IPC: H01R13/115
Filed: 1970-04-16
Abstract: 1,245,214. Two-part couplings. AMP Inc. 16 April, 1970 [29 April, 1969], No. 18110/70. Heading H2E. A tab receptacle, stamped and bent from sheet metal, comprises a receptacle portion comprising a base 6 and two slotted sides 7 which converge longitudinally towards the crimping portions 3, 4 of the receptacle. The sides 7 may be bowed inwardly to overlie the base, and the base may be bent upwardly both longitudinally and transversely to resiliently deform and grip a longitudinally inserted tab (20, Fig. 7, not shown) between itself and the sides 7. A dimple 19 may also be provided to engage a corresponding recess in an inserted tab and ears 24 may be provided to guide a tab into the slots 8. An indentation 23 strengthens the portion between the receptacle and crimping portions. Crimping ferrules 3 and 4 grip a bared wire end and insulation thereof respectively. Such receptacles may be formed in a continuous strip, joined by portions (13, 14, Fig. 6, not shown).
Patent GB-546053-A (GB)
Title: Improvements relating to children's play pens
IPC: A47D13/06
Filed: 1940-12-24
Abstract: 546,053. Children's play pens. BAVEYSTOCK, A. R. H., and BAVEYSTOCK, R. H. Dec. 24, 1940. No. 18118. [Class 52 (i)] A play pen of the usual four sided folding type is provided in one of the sides with a hinged, lifting, sliding or removable gate, to provide access without the necessity of lifting the child. In the form shown in Fig. 1 an ordinary flush hinged gate with top and bottom rails 10, 11 is employed, the bottom rail 2 of the side of the pen being continuous. The gate may be retained shut by a thumb-screw 15. In modifications pivots may be formed by an upright bar of the gate, or by pivot pins carried by blocks on the top and bottom rails of the side. A gate of parallel rule form, Fig. 7, or a rigid gate, Fig. 9, may open in the plane of one side. A gate adapted to fall outwards about bottom horizontal pivots may be employed, and may be covered by a panel so that the child may walk on it when lowered. Vertically slidable lift-off gates and a horizontally slidable gate are also described.
Patent GB-1431767-A (GB)
Title: Controlling the concentration of impurities in a gas stream
IPC: B01D53/04
Filed: 1972-04-19
Abstract: 1431767 Absorbing impurities in gases PETROCARBON DEVELOPMENTS LTD 18 April 1973 [19 April 1972] 18166/72 Heading B1L A stream of gas which has been used to regenerate an absorber containing fluctuating amounts of impurity recovered from the absorber has the level of the impurity in the regenerating stream for discharge or reuse maintained below a predetermined level which is between the maximum and the average level of impurity in the recovered regenerating stream by measuring the level in the recovered regenerating stream 14 and by control means 8 responsive to this level diverting at least a portion of the stream 10 from the regeneration step through an absorber 2 which removes the impurity and recombining the purified portion with any untreated portion passing through line 12 while the concentration of impurity in line 12 exceeds the predetermined level. When the concentration of impurity in the recovered stream 14 falls below the predetermined level a portion of the purified regeneration stream is diverted back through line 4 to completely regenerate the absorber for future use. Water vapour, carbon dioxide, sulphur dioxide, benzene and hydrogen sulphide are exemplified as impurities.
Patent GB-674971-A (GB)
Title: Improvements in or relating to bumpers for motor vehicles
Inventor: BLATCHLEY JOHN POLWHELE
IPC: B60R19/26
Filed: 1949-07-08
Abstract: 674,971. Vehicle collision guards. ROLLS-ROYCE, Ltd. July 18, 1950 [July 8, 1949], No. 18182/49. Class 103(ii) A motor vehicle bumper comprising spring support bars by means of which the bumper is mounted on the vehicle, a contact bar in one or more sections capable of resilient deformation and attached to the spring supports and a top web extending along the length of the contact bar, is characterized in that the top web is formed in a number of sections each connected with the contact bar at a plurality of points spaced along the length of the contact bar through resilient connections which permit bending of the contact bar without substantial deformation of the top web occurring. The contact bar 32 is secured to the chassis 34 by means of spring-support bars 33, the top edge of the bumper being substantially on a level with a styling shelf 31 of the body panels 30. A top web 38 is supported from the bar 32 to mask the gap between the contact bar and the shelf 31. The web 38 is formed in three sections separated by over-ride brackets 42 and each section is secured to the contact bar by at least two resilient connections which may each comprise a resilient strip of metal or, as shown, U-section and angle section members 41 connected by a rubber block 40. Alternative embodiments are described which include a contact bar constructed from three inter-connected sections and modified supports for the member 38.
Patent GB-726278-A (GB)
Title: Retreading mold
IPC: B29D30/54
Filed: 1953-07-01
Abstract: 726,278. Retreading tyres. GENERAL TIRE & RUBBER CO. July 1, 1953 [July 26, 1952], No. 18263/53. Class 87 (2) A tyre retreading mould comprises a cylindrical section 10 of sheet metal having welded to it shoulders 11 with out-turned flanges 12; heating coils 14, surround the parts 10 and 11, and are insulated by a removable cover ring 21 having a reflecting inner surface of corrugated aluminium and side walls 22 with insulation 35. Ribbed mould segments 13 having vent-holes 43 are secured by means of screws 41 passing through elongated slots 42 in the sheet 10 to permit relative movement of elements 10 and 13, the vent holes 43 being aligned with holes 44 in sheet 10. The cover ring 21 is in two hinged semi-circular sections and fastened by hand-operated clasps 27 and is hung by eye bolt hangers 15.
Patent GB-641333-A (GB)
Title: Improvements in or relating to moulded catalysts
IPC: B01J23/70
Filed: 1948-07-07
Abstract: Moulded catalysts comprising active metals on a carrier of beta-aluminium oxide are prepared by precipitating the active metal partially or completely in the form of a hydrosilicate on the carrier, drying, compressing into pellets and reducing with hydrogen. Precipitation of the hydrosilicate is effected by the addition of a soluble silicate to a solution of a salt of the metal.  Specified active metals are those of Group VIII and copper and manganese.  In an example a solution of the nitrates of cobalt, thorium and magnesium is mixed with solutions of sodium carbonate and sodium silicate at 90-95 DEG  C., and beta-alumina added.  The suspended material is filtered off, washed, dried, pulverized, compressed to pellets and then reduced with hydrogen at 400 DEG  C.  The catalysts may be employed for hydrogenation, dehydrogenation and isomerization reactions and for the synthesis of hydrocarbons from carbon monoxide and hydrogen.  Specification 571,352 is referred to.
Patent GB-223297-A (GB)
Title: Improvements in or relating to fuel-distillation
IPC: C10B1/04
Filed: 1923-07-17
Abstract: 223,297. Electrical Improvements, Ltd., and Weeks, E. G. July 17, 1923. Charging and discharging. - In the distillation of solid fuel, particularly at low temperature, a proportion of coke, which may be the residue from the process, is fed into the retort with the charge of fuel to prevent the sticking together of the fuel particles during the passage through a vertical retort. The amount of coke is between 10 and 25 per cent of the weight of the charge. The retort 10 is provided with a heating jacket 11 the hot gases from which are employed to preheat the fuel, which is fed through a hopper 13 on to a conveyer 14 discharging through an opening 15 on to a screw conveyer 16 leading to a fuel distributor 20 of the kind described in Specification 186,834. The fine particles passing through the conveyer band enter the screw conveyer 16 through an opening 18 above which the hot gases enter. A coke extractor and crusher 30 delivers the residue to worm conveyers 22, 27, the former swivelling about the discharge outlet 21 so as to distribute the coke evenly on a furnace grate and the latter supplying hot coke to an elevator 28 delivering the coke through' a shoot 29 into the distributor 20. Specifications 16857/14, 186,085*, [both in Class 55 (i), Coking &c.], and 202,738 also are referred to.
Patent GB-1128075-A (GB)
Title: Method and apparatus for optical data processing
IPC: G02B27/46
Filed: 1966-04-27
Abstract: 1,128,075. Optical apparatus. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. April 27, 1966 [April 29, 1965], No.18449/66. Heading G2J. Light from a helium neon or ruby laser 12 is brought to a point focus 11 by lenses 13, 14 through a circular aperture 15 in an opaque plate 16, and then falls on a collimating mirror 10 from which it is reflected on to an object replica 20. The replica 20 consists of an optically flat reflective surface having a copy of e.g. a seismic record, in relief thereon. The light is diffracted by the relief pattern and is reflected on to an imaging mirror 28 which causes parallel light rays striking its surface to converge to points in its focal plane and thereby form the Fraunhofer diffraction pattern or Fourier transform of the spatial structure of the replica 20. An apertured opaque plate 29 is provided in the focal plane of the mirror 28 and light rays passing through the aperture are re-imaged and observed through a microscope. The diffracted light from the replica 20 is selectively filtered by means of filters 36, 37 in the focal plane of the mirror 28.
Patent GB-1515840-A (GB)
Title: Dispenser
IPC: B65D47/06
Filed: 1977-05-03
Abstract: 1515840 Condiment dispenser DART INDUSTRIES Inc 3 May 1977 [4 June 1976] 18562/77 Heading A4A [Also in Division B2] A dispenser for spices or herbs comprises a container with an upwardly extending recess 18 in its bottom wall 6 and a perforated dispensing cap 8 removably fitted across the top of the container, the cap 8 being shaped so that it will fit into the recess whereby Fig. 14 (not shown) a number of dispensers may be stacked one on top of the other. The dispenser is of plastics and the cap 8 is held to the container by a bead (11) on the cap engaging under a bead 15 on the container. An unperforated protective cap 16 may be fitted over the perforated cap, e.g. of the top dispenser in a stack, and both caps 8, 16 have cut-outs (14, 20) to facilitate their removal. In a modification Figs. 16, 21 (not shown) the perforated cap is in two halves hinged together, one half being unperforated and able to be hinged open from the container allowing a spoon to be inserted.
Patent GB-922926-A (GB)
Title: Process for the production of pure ammonia gas
Inventor: MARSHALL JOHN RATCLIFFE
IPC: C01C1/12
Filed: 1960-05-25
Abstract: Pure ammonia gas is produced by steam stripping preliminary or partially deacidified ammoniacal liquor, i.e. from coke ovens and gas works containing up to 25% NH3, up to 10% CO2 and up to 5% H2S, of ammoniacal vapours which are cooled in at least two stages; in the first stage a condensate is separated from enriched ammoniacal vapours and in a following stage or stages the vapours are further cooled and scrubbed with pure ammonia liquor obtained as wash liquor in a final stage in which the vapours are washed with concentrated pure NH3 liquor to produce NH3.  The last washing may be with concentrated liquor which is produced in situ by addition of H2O and at least part of this liquor may be used as scrubbing liquor in the cooling and scrubbing stages or combined together with H2O with the preceeding wash liquor.  The warm enriched vapours may be washed with raw feed liquor after the first cooling stage and the wash liquor may then be cooled and stored before being deacidified. The used liquor from the cooler and scrubber may be partly circulated and partly returned to the raw liquor feed stream.  Ammoniacal liquor is fed by 2 to vessel 1 where it is preliminary deacidified, i.e. the majority of H2S and CO2 is removed with steam at 100 p.s.i. fed at 3. Vessel 1 is filled with, e.g. Raschig rings or trays. The liquor is preheated in tubular multi-pass heat exchanger 5 using hot effluent from still 4. H2S and CO2 gases pass from 1 via fractionating column 6 to washer 7 filled with Raschig rings and fed by H2O at 8 which returns NH3 to 1.  The gases pass via a pressure control valve (not shown) and line 9 to an H2S burner for the production of H2SO4.  Liquor from 1 is fed by line 10 to vessel 11 where NH3 vapours in line 13 from still 4 which is fed by liquor at 14, contains trays and bubble caps, is fed by steam at up to 25 p.s.i. at 15 and an NH3 free effluent is removed at 16.  NH3 in line 13 is fed to fractionating column 17 where condensate is returned to the still and the gas is fed via a pressure control valve (not shown) to condenser washer 18 where the gas is cooled and scrubbed with NH3 liquor fed at 19 to remove H2S and CO2. The gas is then fed to washer 20 filled with Raschig rings and fed by concentrated, e.g. synthetic, NH3 liquor at 21 to remove H2S.  Wash liquor from 20 is removed at 22 and returned by pump 27 to washer 18 from which liquor is bled off at 23 to raw liquor line 24, while the remainder of liquor is returned via line 25 and pump 27.  Pure NH3 is removed at 28.  A plant which has an additional washer and which may use unheated feed is described in Fig. 2 (not shown). <PICT:0922926/III/1>
Patent GB-1354324-A (GB)
Title: Reconcentrating hygroscopic liquids used in gas dehydration with reverse osmosis
IPC: B01D53/26
Filed: 1971-06-02
Abstract: 1354324 Concentrating liquid dessicants by reverse osmosis MALONEYCRAWFORD TANK CORP 2 June 1971 [15 June 1970] 18625/71 Headings B1L and B1X A wet liquid desiccant, e.g. mono-, di-, or tri-ethylene glycol, or brine used in the drying of natural gas, is dehydrated using a reverse osmosis process. As shown brine is fed from storage tank 10 to gas drying tower 18. Wet brine is fed via float valve 32, 34 to a reverse osmosis unit, e.g. of hollow fibres. A specific gravity controller 40 controls the admission of brine to the storage tank 10. In another embodiment Fig. 3 (not shown), dehydrated glycol is passed from the reverse osmosis unit to a reboiler via a gas-glycol separator, a flow operated eductor and a flash chamber. More than one reverse osmosis unit may be used.
Patent GB-390684-A (GB)
Title: Means for regulating the reception in wireless apparatus
IPC: H03G3/20
Filed: 1932-07-04
Abstract: 390,684. Wireless receiving- apparatus. PIESKER, B., 5, Adalbertstrasse, and GOY, W., 46, Waldschmidtstrasse, both in Frankfort-on- Main, Germany. July 4, 1932, No. 18851. Convention date, March 7. [Class 40 (v).] The output from a loud-speaker l is controlled by means of a circuit coupled to the speaker circuit at i and containing a milliammeter m, the moving needle z of which connects the aerial to earth, through a conducting liquid in a tank b, and so shunts the receiver e. The end of the needle z moves between contacts 1 .. 4 in a bath b containing glycerine mixed with metallic salts. The ammeter m may be replaced by a resistance coil dipping into an oil bath, the conductivity of which is varied by the heat generated by the current passing through the coupled circuit.